Messages in this thread | | | From | Jani Nikula <> | Subject | Re: [Intel-gfx] [BUG] cc5b114dcf bpf, i40e: add meta data support | Date | Mon, 25 Jun 2018 15:24:09 +0300 |
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FYI, the list you're looking for is likely intel-wired-lan (added), not intel-gfx (removed).
BR, Jani.
On Tue, 12 Jun 2018, Daniel Borkmann <daniel@iogearbox.net> wrote: > On 06/12/2018 06:17 PM, Keith Busch wrote: >> My server's i40e no longer obtains an IP address on linux >> mainline. Bisected to the following: >> >> commit cc5b114dcf986bfd8e4c37bf65d1b7b1e5290ac6 >> Author: Daniel Borkmann <daniel@iogearbox.net> >> Date: Mon May 28 11:07:20 2018 +0200 >> >> bpf, i40e: add meta data support >> >> Reverting on mainline resolves the issue. >> >> Is there something wrong with my i40e adapter, or is the patch possibly >> doing something wrong? Or any other information I can get to help >> understand why it's stopped working with this feature? >> >> An excert from "journalctl -xe" on on the failing network adapter >> is below. > > Thanks for the report & sorry for the issue, Keith! Instead of revert, > could you give the below fix a try? > > diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.c b/drivers/net/ethernet/intel/i40e/i40e_txrx.c > index 8ffb745..ed6dbcf 100644 > --- a/drivers/net/ethernet/intel/i40e/i40e_txrx.c > +++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.c > @@ -2103,9 +2103,8 @@ static struct sk_buff *i40e_build_skb(struct i40e_ring *rx_ring, > unsigned int truesize = i40e_rx_pg_size(rx_ring) / 2; > #else > unsigned int truesize = SKB_DATA_ALIGN(sizeof(struct skb_shared_info)) + > - SKB_DATA_ALIGN(I40E_SKB_PAD + > - (xdp->data_end - > - xdp->data_hard_start)); > + SKB_DATA_ALIGN(xdp->data_end - > + xdp->data_hard_start); > #endif > struct sk_buff *skb; > > @@ -2124,7 +2123,7 @@ static struct sk_buff *i40e_build_skb(struct i40e_ring *rx_ring, > return NULL; > > /* update pointers within the skb to store the data */ > - skb_reserve(skb, I40E_SKB_PAD + (xdp->data - xdp->data_hard_start)); > + skb_reserve(skb, xdp->data - xdp->data_hard_start); > __skb_put(skb, xdp->data_end - xdp->data); > if (metasize) > skb_metadata_set(skb, metasize); > > Thanks, > Daniel > _______________________________________________ > Intel-gfx mailing list > Intel-gfx@lists.freedesktop.org > https://lists.freedesktop.org/mailman/listinfo/intel-gfx
-- Jani Nikula, Intel Open Source Graphics Center
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